linux-kernel - Re: [PATCH] cifs: style: replace one-element array with flexible-array

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Date:   Thu, 31 Dec 2020 13:48:56 -0600
From:   Steve French <smfrench@...il.com>
To:     YANG LI <abaci-bugfix@...ux.alibaba.com>
Cc:     Steve French <sfrench@...ba.org>,
        CIFS <linux-cifs@...r.kernel.org>,
        samba-technical <samba-technical@...ts.samba.org>,
        LKML <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] cifs: style: replace one-element array with flexible-array

merged into cifs-2.6.git for-next

On Wed, Dec 30, 2020 at 12:37 AM YANG LI <abaci-bugfix@...ux.alibaba.com> wrote:
>
> There is a regular need in the kernel to provide a way to declare
> having a dynamically sized set of trailing elements in a structure.
> Kernel code should always use "flexible array members"[1] for these
> cases. The older style of one-element or zero-length arrays should
> no longer be used[2].
>
> [1] https://en.wikipedia.org/wiki/Flexible_array_member
> [2] https://www.kernel.org/doc/html/v5.9/process/
>     deprecated.html#zero-length-and-one-element-arrays
>
> Signed-off-by: YANG LI <abaci-bugfix@...ux.alibaba.com>
> Reported-by: Abaci <abaci@...ux.alibaba.com>
> ---
>  fs/cifs/smb2pdu.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
> index 204a622..d85edf5 100644
> --- a/fs/cifs/smb2pdu.h
> +++ b/fs/cifs/smb2pdu.h
> @@ -424,7 +424,7 @@ struct smb2_rdma_transform_capabilities_context {
>         __le16  TransformCount;
>         __u16   Reserved1;
>         __u32   Reserved2;
> -       __le16  RDMATransformIds[1];
> +       __le16  RDMATransformIds[];
>  } __packed;
>
>  /* Signing algorithms */
> --
> 1.8.3.1
>


-- 
Thanks,

Steve